/*
* Copyright (c) 2011 Intel Corporation. All Rights Reserved.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the
* "Software"), to deal in the Software without restriction, including
* without limitation the rights to use, copy, modify, merge, publish,
* distribute, sub license, and/or sell copies of the Software, and to
* permit persons to whom the Software is furnished to do so, subject to
* the following conditions:
*
* The above copyright notice and this permission notice (including the
* next paragraph) shall be included in all copies or substantial portions
* of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
* OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NON-INFRINGEMENT.
* IN NO EVENT SHALL PRECISION INSIGHT AND/OR ITS SUPPLIERS BE LIABLE FOR
* ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
* TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
* SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
*
* Authors:
* Binglin Chen <binglin.chen@intel.com>
*
*/
#include "vsp_VPP.h"
#include "vsp_cmdbuf.h"
#include "psb_drv_debug.h"
#define CMD_SIZE (0x3000)
#define LLDMA_SIZE (0x2000)
#define RELOC_SIZE (0x3000)
/*
* Create command buffer
*/
VAStatus vsp_cmdbuf_create(
object_context_p obj_context,
psb_driver_data_p driver_data,
vsp_cmdbuf_p cmdbuf)
{
VAStatus vaStatus = VA_STATUS_SUCCESS;
unsigned int size = CMD_SIZE + RELOC_SIZE;
context_VPP_p ctx = (context_VPP_p) obj_context->format_data;
cmdbuf->size = 0;
cmdbuf->cmd_base = NULL;
cmdbuf->cmd_idx = NULL;
cmdbuf->reloc_base = NULL;
cmdbuf->reloc_idx = NULL;
cmdbuf->buffer_refs_count = 0;
cmdbuf->buffer_refs_allocated = 10;
cmdbuf->buffer_refs = (psb_buffer_p *) calloc(1, sizeof(psb_buffer_p) * cmdbuf->buffer_refs_allocated);
if (NULL == cmdbuf->buffer_refs) {
cmdbuf->buffer_refs_allocated = 0;
vaStatus = VA_STATUS_ERROR_ALLOCATION_FAILED;
goto err1;
}
vaStatus = psb_buffer_create(driver_data, size, psb_bt_cpu_only, &cmdbuf->buf);
cmdbuf->size = size;
if (VA_STATUS_SUCCESS != vaStatus)
goto err2;
vaStatus = psb_buffer_create(driver_data, ctx->param_sz, psb_bt_cpu_vpu, &cmdbuf->param_mem);
if (VA_STATUS_SUCCESS != vaStatus)
goto err3;
return vaStatus;
err3:
psb_buffer_destroy(&cmdbuf->buf);
err2:
free(cmdbuf->buffer_refs);
cmdbuf->buffer_refs = NULL;
cmdbuf->buffer_refs_allocated = 0;
err1:
return vaStatus;
}
/*
* Destroy buffer
*/
void vsp_cmdbuf_destroy(vsp_cmdbuf_p cmdbuf)
{
if (cmdbuf->size) {
psb_buffer_destroy(&cmdbuf->buf);
cmdbuf->size = 0;
}
if (cmdbuf->buffer_refs_allocated) {
free(cmdbuf->buffer_refs);
cmdbuf->buffer_refs = NULL;
cmdbuf->buffer_refs_allocated = 0;
}
psb_buffer_destroy(&cmdbuf->param_mem);
}
/*
* Reset buffer & map
*
* Returns 0 on success
*/
int vsp_cmdbuf_reset(vsp_cmdbuf_p cmdbuf)
{
int ret;
cmdbuf->cmd_base = NULL;
cmdbuf->cmd_idx = NULL;
cmdbuf->reloc_base = NULL;
cmdbuf->reloc_idx = NULL;
cmdbuf->buffer_refs_count = 0;
cmdbuf->cmd_count = 0;
ret = psb_buffer_map(&cmdbuf->buf, &cmdbuf->cmd_base);
if (ret) {
return ret;
}
cmdbuf->cmd_start = cmdbuf->cmd_base;
cmdbuf->cmd_idx = (uint32_t *) cmdbuf->cmd_base;
cmdbuf->reloc_base = cmdbuf->cmd_base + CMD_SIZE;
cmdbuf->reloc_idx = (struct drm_psb_reloc *) cmdbuf->reloc_base;
/* Add ourselves to the buffer list */
vsp_cmdbuf_buffer_ref(cmdbuf, &cmdbuf->buf); /* cmd buf == 0 */
return ret;
}
/*
* Unmap buffer
*
* Returns 0 on success
*/
int vsp_cmdbuf_unmap(vsp_cmdbuf_p cmdbuf)
{
cmdbuf->cmd_base = NULL;
cmdbuf->cmd_start = NULL;
cmdbuf->cmd_idx = NULL;
cmdbuf->reloc_base = NULL;
cmdbuf->reloc_idx = NULL;
cmdbuf->cmd_count = 0;
psb_buffer_unmap(&cmdbuf->buf);
return 0;
}
/*
* Reference an addtional buffer "buf" in the command stream
* Returns a reference index that can be used to refer to "buf" in
* relocation records, -1 on error
*/
int vsp_cmdbuf_buffer_ref(vsp_cmdbuf_p cmdbuf, psb_buffer_p buf)
{
int item_loc = 0;
// while ((item_loc < cmdbuf->buffer_refs_count) && (cmdbuf->buffer_refs[item_loc] != buf)) {
/*Reserve the same TTM BO twice will cause kernel lock up*/
while ((item_loc < cmdbuf->buffer_refs_count)
&& (wsbmKBufHandle(wsbmKBuf(cmdbuf->buffer_refs[item_loc]->drm_buf))
!= wsbmKBufHandle(wsbmKBuf(buf->drm_buf)))) {
item_loc++;
}
if (item_loc == cmdbuf->buffer_refs_count) {
/* Add new entry */
if (item_loc >= cmdbuf->buffer_refs_allocated) {
/* Allocate more entries */
int new_size = cmdbuf->buffer_refs_allocated + 10;
psb_buffer_p *new_array;
new_array = (psb_buffer_p *) calloc(1, sizeof(psb_buffer_p) * new_size);
if (NULL == new_array) {
return -1; /* Allocation failure */
}
memcpy(new_array, cmdbuf->buffer_refs, sizeof(psb_buffer_p) * cmdbuf->buffer_refs_allocated);
free(cmdbuf->buffer_refs);
cmdbuf->buffer_refs_allocated = new_size;
cmdbuf->buffer_refs = new_array;
}
cmdbuf->buffer_refs[item_loc] = buf;
cmdbuf->buffer_refs_count++;
buf->status = psb_bs_queued;
}
return item_loc;
}
/* Creates a relocation record for a DWORD in the mapped "cmdbuf" at address
* "addr_in_cmdbuf"
* The relocation is based on the device virtual address of "ref_buffer"
* "buf_offset" is be added to the device virtual address, and the sum is then
* right shifted with "align_shift".
* "mask" determines which bits of the target DWORD will be updated with the so
* constructed address. The remaining bits will be filled with bits from "background".
*/
void vsp_cmdbuf_add_relocation(vsp_cmdbuf_p cmdbuf,
uint32_t *addr_in_dst_buffer,/*addr of dst_buffer for the DWORD*/
psb_buffer_p ref_buffer,
uint32_t buf_offset,
uint32_t mask,
uint32_t background,
uint32_t align_shift,
uint32_t dst_buffer,
uint32_t *start_of_dst_buffer) /*Index of the list refered by cmdbuf->buffer_refs */
{
struct drm_psb_reloc *reloc = cmdbuf->reloc_idx;
uint64_t presumed_offset = wsbmBOOffsetHint(ref_buffer->drm_buf);
reloc->where = addr_in_dst_buffer - start_of_dst_buffer; /* Offset in DWORDs */
reloc->buffer = vsp_cmdbuf_buffer_ref(cmdbuf, ref_buffer);
ASSERT(reloc->buffer != -1);
reloc->reloc_op = PSB_RELOC_OP_OFFSET;
#ifndef VA_EMULATOR
if (presumed_offset) {
uint32_t new_val = presumed_offset + buf_offset;
new_val = ((new_val >> align_shift) << (align_shift << PSB_RELOC_ALSHIFT_SHIFT));
new_val = (background & ~mask) | (new_val & mask);
*addr_in_dst_buffer = new_val;
} else {
*addr_in_dst_buffer = PSB_RELOC_MAGIC;
}
#else
/* indicate subscript of relocation buffer */
*addr_in_dst_buffer = reloc - (struct drm_psb_reloc *)cmdbuf->reloc_base;
#endif
reloc->mask = mask;
reloc->shift = align_shift << PSB_RELOC_ALSHIFT_SHIFT;
reloc->pre_add = buf_offset;
reloc->background = background;
reloc->dst_buffer = dst_buffer;
cmdbuf->reloc_idx++;
ASSERT(((unsigned char *)(cmdbuf->reloc_idx)) < RELOC_END(cmdbuf));
}
/*
* Advances "obj_context" to the next cmdbuf
*
* Returns 0 on success
*/
int vsp_context_get_next_cmdbuf(object_context_p obj_context)
{
vsp_cmdbuf_p cmdbuf;
int ret;
if (obj_context->vsp_cmdbuf) {
return 0;
}
obj_context->cmdbuf_current++;
if (obj_context->cmdbuf_current >= VSP_MAX_CMDBUFS) {
obj_context->cmdbuf_current = 0;
}
cmdbuf = obj_context->vsp_cmdbuf_list[obj_context->cmdbuf_current];
ret = vsp_cmdbuf_reset(cmdbuf);
if (!ret) {
/* Success */
obj_context->vsp_cmdbuf = cmdbuf;
}
cmdbuf->param_mem_loc = vsp_cmdbuf_buffer_ref(cmdbuf, &cmdbuf->param_mem);
return ret;
}
/*
* This is the user-space do-it-all interface to the drm cmdbuf ioctl.
* It allows different buffers as command- and reloc buffer. A list of
* cliprects to apply and whether to copy the clipRect content to all
* scanout buffers (damage = 1).
*/
/*
* Don't add debug statements in this function, it gets called with the
* DRM lock held and output to an X terminal can cause X to deadlock
*/
static int
vspDRMCmdBuf(int fd, int ioctl_offset, psb_buffer_p *buffer_list, int buffer_count, unsigned cmdBufHandle,
unsigned cmdBufOffset, unsigned cmdBufSize,
unsigned relocBufHandle, unsigned relocBufOffset,
unsigned __maybe_unused numRelocs, int __maybe_unused damage,
unsigned engine, unsigned fence_flags, struct psb_ttm_fence_rep *fence_rep)
{
drm_psb_cmdbuf_arg_t ca;
struct psb_validate_arg *arg_list;
int i;
int ret = 0;
uint64_t mask = PSB_GPU_ACCESS_MASK;
arg_list = (struct psb_validate_arg *) calloc(1, sizeof(struct psb_validate_arg) * buffer_count);
if (arg_list == NULL) {
drv_debug_msg(VIDEO_DEBUG_ERROR, "Allocate memory failed\n");
return -ENOMEM;
}
for (i = 0; i < buffer_count; i++) {
struct psb_validate_arg *arg = &(arg_list[i]);
struct psb_validate_req *req = &arg->d.req;
req->next = (unsigned long) & (arg_list[i+1]);
req->buffer_handle = wsbmKBufHandle(wsbmKBuf(buffer_list[i]->drm_buf));
//req->group = 0;
req->set_flags = (PSB_GPU_ACCESS_READ | PSB_GPU_ACCESS_WRITE) & mask;
req->clear_flags = (~(PSB_GPU_ACCESS_READ | PSB_GPU_ACCESS_WRITE)) & mask;
#if 1
req->presumed_gpu_offset = (uint64_t)wsbmBOOffsetHint(buffer_list[i]->drm_buf);
req->presumed_flags = PSB_USE_PRESUMED;
#else
req->presumed_flags = 0;
#endif
req->pad64 = (uint32_t)buffer_list[i]->pl_flags;
}
arg_list[buffer_count-1].d.req.next = 0;
ca.buffer_list = (uint64_t)((unsigned long)arg_list);
ca.cmdbuf_handle = cmdBufHandle;
ca.cmdbuf_offset = cmdBufOffset;
ca.cmdbuf_size = cmdBufSize;
ca.reloc_handle = relocBufHandle;
ca.reloc_offset = relocBufOffset;
ca.num_relocs = numRelocs;
ca.engine = engine;
ca.fence_flags = fence_flags;
ca.fence_arg = (uint64_t)((unsigned long)fence_rep);
do {
ret = drmCommandWrite(fd, ioctl_offset, &ca, sizeof(ca));
} while (ret == EAGAIN);
if (ret)
goto out;
for (i = 0; i < buffer_count; i++) {
struct psb_validate_arg *arg = &(arg_list[i]);
struct psb_validate_rep *rep = &arg->d.rep;
if (!arg->handled) {
ret = -EFAULT;
goto out;
}
if (arg->ret != 0) {
ret = arg->ret;
goto out;
}
wsbmUpdateKBuf(wsbmKBuf(buffer_list[i]->drm_buf),
rep->gpu_offset, rep->placement, rep->fence_type_mask);
}
out:
free(arg_list);
for (i = 0; i < buffer_count; i++) {
/*
* Buffer no longer queued in userspace
*/
switch (buffer_list[i]->status) {
case psb_bs_queued:
buffer_list[i]->status = psb_bs_ready;
break;
case psb_bs_abandoned:
psb_buffer_destroy(buffer_list[i]);
free(buffer_list[i]);
break;
default:
/* Not supposed to happen */
ASSERT(0);
}
}
return ret;
}
/*
* Submits the current cmdbuf
*
* Returns 0 on success
*/
int vsp_context_submit_cmdbuf(object_context_p __maybe_unused obj_context)
{
return 0;
}
/*
* Flushes all cmdbufs
*/
int vsp_context_flush_cmdbuf(object_context_p obj_context)
{
vsp_cmdbuf_p cmdbuf = obj_context->vsp_cmdbuf;
psb_driver_data_p driver_data = obj_context->driver_data;
unsigned int fence_flags;
struct psb_ttm_fence_rep fence_rep;
unsigned int reloc_offset;
unsigned int num_relocs;
int ret;
unsigned int cmdbuffer_size = (unsigned char *)cmdbuf->cmd_idx - cmdbuf->cmd_start; /* In bytes */
ASSERT(cmdbuffer_size < CMD_SIZE);
ASSERT((void *) cmdbuf->cmd_idx < CMD_END(cmdbuf));
/* LOCK */
ret = LOCK_HARDWARE(driver_data);
if (ret) {
UNLOCK_HARDWARE(driver_data);
DEBUG_FAILURE_RET;
return ret;
}
/* Now calculate the total number of relocations */
reloc_offset = cmdbuf->reloc_base - cmdbuf->cmd_base;
num_relocs = ((unsigned char *)cmdbuf->reloc_idx - cmdbuf->reloc_base) / sizeof(struct drm_psb_reloc);
vsp_cmdbuf_unmap(cmdbuf);
ASSERT(NULL == cmdbuf->reloc_base);
#ifdef DEBUG_TRACE
fence_flags = 0;
#else
fence_flags = DRM_PSB_FENCE_NO_USER;
#endif
#ifndef VSP_ENGINE_VPP
#define VSP_ENGINE_VPP 6
#endif
wsbmWriteLockKernelBO();
ret = vspDRMCmdBuf(driver_data->drm_fd, driver_data->execIoctlOffset,
cmdbuf->buffer_refs, cmdbuf->buffer_refs_count, wsbmKBufHandle(wsbmKBuf(cmdbuf->buf.drm_buf)),
0, cmdbuffer_size,/*unsigned cmdBufSize*/
wsbmKBufHandle(wsbmKBuf(cmdbuf->buf.drm_buf)), reloc_offset, num_relocs,
0, VSP_ENGINE_VPP, fence_flags, &fence_rep);
wsbmWriteUnlockKernelBO();
UNLOCK_HARDWARE(driver_data);
if (ret) {
obj_context->vsp_cmdbuf = NULL;
DEBUG_FAILURE_RET;
return ret;
}
obj_context->vsp_cmdbuf = NULL;
return 0;
}